Home / 411,833.27-618,149.37-198,751.15

Finding the Fourth Proportional to 411,833.27, 618,149.37 and 198,751.15

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Solution

The fourth proportional to 411,833.27, 618,149.37 and 198,751.15 is: 298,319.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,833.27 : 618,149.37 = 198,751.15 : x
  2. Step 2: Convert to fraction form
    411,833.27/618,149.37 = 198,751.15/x
  3. Step 3: Cross multiply
    411,833.27x = 618,149.37 × 198,751.15
  4. Step 4: Simplify right side
    411,833.27x = 122,857,898,159.28
  5. Step 5: Solve for x
    x = 122,857,898,159.28/411,833.27
  6. Step 6: Final answer
    x = 298,319.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.